My one is very weird, polo shirts. Seeing a girl wearing a tight polo blowing up a balloon would be a dream come true for me. I think this is because when I was young some adults who were girls teased me with a balloon and popped it. At the time they were wearing polo shirts. I got a phobia for balloons from this, so perhaps as it turned into a fetish when I grew older I associated the clothing they were wearing with it. That's my logic lol.